Home / 1,384,128,200.40-2,076,192,300.60-728,182,165.20

Finding the Fourth Proportional to 1,384,128,200.40, 2,076,192,300.60 and 728,182,165.20

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Solution

The fourth proportional to 1,384,128,200.40, 2,076,192,300.60 and 728,182,165.20 is: 1,092,273,247.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,128,200.40 : 2,076,192,300.60 = 728,182,165.20 : x
  2. Step 2: Convert to fraction form
    1,384,128,200.40/2,076,192,300.60 = 728,182,165.20/x
  3. Step 3: Cross multiply
    1,384,128,200.40x = 2,076,192,300.60 × 728,182,165.20
  4. Step 4: Simplify right side
    1,384,128,200.40x = 1,511,846,204,822,477,312
  5. Step 5: Solve for x
    x = 1,511,846,204,822,477,312/1,384,128,200.40
  6. Step 6: Final answer
    x = 1,092,273,247.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.